diff options
Diffstat (limited to 'ui/wm/public')
| -rw-r--r-- | ui/wm/public/activation_change_observer.h | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/ui/wm/public/activation_change_observer.h b/ui/wm/public/activation_change_observer.h index 68d5b8a..57f9d27 100644 --- a/ui/wm/public/activation_change_observer.h +++ b/ui/wm/public/activation_change_observer.h @@ -14,11 +14,23 @@ namespace client { class AURA_EXPORT ActivationChangeObserver { public: - // Called when |active| gains focus, or there is no active window - // (|active| is NULL in this case.) |old_active| refers to the + // The reason or cause of a window activation change. + enum class ActivationReason { + // When a window is activated due to a call to the ActivationClient API. + ACTIVATION_CLIENT, + // When a user clicks or taps a window in the 2-dimensional screen space. + INPUT_EVENT, + // When a new window is activated as a side effect of a window + // disposition changing. + WINDOW_DISPOSITION_CHANGED, + }; + + // Called when |gained_active| gains focus, or there is no active window + // (|gained_active| is NULL in this case.) |lost_active| refers to the // previous active window or NULL if there was no previously active - // window. - virtual void OnWindowActivated(Window* gained_active, + // window. |reason| specifies the cause of the activation change. + virtual void OnWindowActivated(ActivationReason reason, + Window* gained_active, Window* lost_active) = 0; // Called when during window activation the currently active window is |